Estudo de arquiteturas reconfiguráveis para aumento de desempenho de aplicações DSP

Abstract

Applications which use techniques of Digital Signal Processing (DSP) are in the most varied applications of everyday life. Normally, to perform these tasks efficiently specialized for this purpose processors are used, the Programmable Digital Signal Processors (PDSP) that have units that speed up the execution of tasks which the general purpose processors can’t do efficiently. Even the PDSP being so efficient, current methods and techniques used by the industry for the manufacture of integrated circuits can’t guarantee the progress of such devices in accordance with Moore's Law. To ensure progress, new techniques and methodologies are needed, one area of research that has contributed to increased and this is reconfigurable computing. In this paper, we present the application of this technique by coupling a reconfigurable system on a MIPS32 processor, analyzing the impacts on performance, area and energetic consumption. In this paper also is realized a comparison between commercial PDSPs, GPP and Reconfigurable System selected. The comparisons were performed by collecting and analyzing the data of the execution of applications with DSP features, implemented in the selected simulation tools. The results obtained show speed up in time execution of applications on the order of 1.79 times and energy saving on order of 45%.